Application Icon switches to FreeCAD logo on Windows when pinning to taskbar or installing

[vanessa-luna]

Problem description

I use both FreeCAD au natural, and AstoCAD (because I am beginning to teach FreeCAD!!)

I have only ever associated AstoCAD with .FCStd files. I have also removed file associations to see if that would impact it. This has happened with every version of AstoCAD I've used in recent memory

Workbench affected?

None

Steps to reproduce

1. download AstoCAD portable

2. Right click .exe and pin to taskbar.

3. Might require opening and closing once or rebooting

4. download AstoCAD installer

5. install AstoCAD

6. Final page of installer you will notice the FreeCAD logo instead

7. FreeCAD logo appears when using application

Expected behavior

To ne'er see the FreeCAD logo ever again!

Actual behavior

FreeCAD logo appears and robs me of the beautiful logo you designed.

Development version About Info (in Safe Mode)

OS: Windows 10 build 19045
Architecture: x86_64
Version: 1.1.0dev.20260311 (Git shallow)
Build date: 2026/03/11 17:39:56
Build type: Release
Branch: (HEAD detached at d61c61a6)
Hash: d61c61a67931af1136896822219725704c5d95fd
Python 3.11.15, Qt 6.8.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.8.3
shiboken 6.8.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1
Locale: English/United States (en_US)
Navigation Style/Orbit Style/Rotation Mode: Blender/Rounded Arcball/Window center
Stylesheet/Theme/QtStyle: FreeCAD Dark.qss/Dark/
Logical DPI/Physical DPI/Pixel Ratio: 96/134.063/1.5

Last known good version (optional)

[rmdug]

I confirm this behaviour since a few versions already.

[vanessa-luna]

I had not looked at closed issues, sorry about that.

But I have found a mediocre workaround.

1. Download AstoCAD Portable
2. Create a shortcut to the AstoCAD.exe
3. Pin the Shortcut to the Taskbar
4. Launching AstoCAD will add a second icon to the taskbar but at least the icons stay correct.

Wish I knew how to help address this, but I am going to switch to linux real soon so it will be moot for me

[jonfoster]

Possibly useful information:

Why does the taskbar icon for grouped windows change to something weird? -- a post from Reymond Chen's "Old New Thing" blog, where he explains how Windows finds the icon.